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A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.
- a)8 second
- b)9 second
- c)8.5 second
- d)9.5 second.
Correct answer is 'C'. Can you explain this answer?
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Verified Answer
A train 120m long moving on a straight and level track with uniform sp...
AS, d=120m (length of train)
t=6 sec (to pass the pole)
v=?
Therefore,
v=d\t
=120\6
=20m\s
As, The train is 120 m long and bridge is 50 m long = {120+ 50 = 170 m } So, Time taken = distance/speed
= 170/20
= 8.5 seconds
Most Upvoted Answer
A train 120m long moving on a straight and level track with uniform sp...
Problem Statement:
A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.
Solution:
Given,
Length of the train = 120m
Time taken to pass a pole = 6 seconds
Length of the bridge = 50m
Let's assume the speed of the train to be 's' m/s
To pass a pole, the distance covered by the train is its length i.e. 120m. Therefore, the speed of the train can be calculated as follows:
s = distance/time = 120/6 = 20 m/s
Now, to cross the bridge, the train has to cover a distance of 120m (length of train) + 50m (length of bridge) = 170m.
Time taken to cross the bridge can be calculated as follows:
time = distance/speed = 170/20 = 8.5 seconds
Therefore, the time taken by the train to cross the 50m long bridge is 8.5 seconds.
Answer: Option (C)
A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.
Solution:
Given,
Length of the train = 120m
Time taken to pass a pole = 6 seconds
Length of the bridge = 50m
Let's assume the speed of the train to be 's' m/s
To pass a pole, the distance covered by the train is its length i.e. 120m. Therefore, the speed of the train can be calculated as follows:
s = distance/time = 120/6 = 20 m/s
Now, to cross the bridge, the train has to cover a distance of 120m (length of train) + 50m (length of bridge) = 170m.
Time taken to cross the bridge can be calculated as follows:
time = distance/speed = 170/20 = 8.5 seconds
Therefore, the time taken by the train to cross the 50m long bridge is 8.5 seconds.
Answer: Option (C)
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A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.a)8 secondb)9 secondc)8.5 secondd)9.5 second.Correct answer is 'C'. Can you explain this answer?
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A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.a)8 secondb)9 secondc)8.5 secondd)9.5 second.Correct answer is 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.a)8 secondb)9 secondc)8.5 secondd)9.5 second.Correct answer is 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.a)8 secondb)9 secondc)8.5 secondd)9.5 second.Correct answer is 'C'. Can you explain this answer?.
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